Wyckerpoort Maastricht, NL
| Job Type | Floating floor system CDM-ISO-LAT for gym above classrooms |
| General Contractor | van Kan Jongen |
| Acoustic consultant | AFL (akoestiek Frans Lemmens) |
| Floor Area | ca. 350 m2 |
| Installation | 2003 |
| Location | Maastricht |
In this schoolbuilding of Wijckerpoort, Maastricht, with the gymroom on the top floor of the building, there were complaints about noise in the classrooms coming from sportactivities. The consultant decided to install a 150mm concrete floating floor on 50mm of mineral wool. During the construction however the 50mm mineral wool layer was reduced to 30mm, and measurements indicated contact between the decoupled floor and the construction floor. It was then decided to have the decoupled floor removed and to design a good floating floor.In order to design a good floating floor, several tests were done on floors with different air voids. Based on the measurements and the lack of height, the client decided to use a 120mm air gap by using timber as overheight. After installation a transmission loss of 12dB(A) was measured.
